CVE-2021-40568 json
A buffer overflow vulnerability exists in Gpac through 1.0.1 via a malformed MP4 file in the svc_parse_slice function in av_parsers.c, whic…
published 2022-01-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27743
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
A buffer overflow vulnerability exists in Gpac through 1.0.1 via a malformed MP4 file in the svc_parse_slice function in av_parsers.c, which allows attackers to cause a denial of service, even code execution and escalation of privileges.
Patch / fix
- gpac Debian 11 1.0.1+dfsg1-4+deb11u2
debian advisories DEBIAN-CVE-2021-40568
- github.com/gpac/gpac@f1ae01d commit
Exploit prediction
1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gpac/gpac/issues/1900 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/gpac/gpac/commit/f1ae01d745200a258cdf62622f71754c37cb6c30
patch, third-party-advisory
-
github.com
/gpac/gpac/issues/1900
exploit, issue-tracking, third-party-advisory
-
debian.org
/security/2023/dsa-5411
vendor-advisory
Sources
- CVE List CVE-2021-40568
- NVD CVE-2021-40568
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